<template>
  <div id="app">
   <div class="todo-container">
    <div class="todo-wrap">
      <Header />
      <List :todoList='todoList' />
      <Footer :todoList='todoList' :CheckedAll='CheckedAll' :deleteAll='deleteAll'/>
    </div>
  </div>
  </div>
</template>

<script>
import { nanoid } from 'nanoid'
import Header from './components/Header'
import List from './components/List'
import Footer from './components/Footer'

export default {
  name: 'App',
  data(){
    return{
      todoList:[
        {id:nanoid(),thing:'唱歌',done:false},
        {id:nanoid(),thing:'跳舞',done:true},
        {id:nanoid(),thing:'rap',done:false},
        {id:nanoid(),thing:'篮球',done:false}
      ]
    }
  },
  components: {
    Header,
    List,
    Footer
  },
    mounted(){
    this.$bus.$on('addList',(value)=>{
      this.todoList.push(value)
    });

    this.$bus.$on('oneDelete',(oid)=>{
      this.todoList = this.todoList.filter((item)=> item.id !== oid )
    })

    this.$bus.$on('radioHandle',(rid)=>{
        this.todoList = this.todoList.map((item)=> item.id === rid? {...item,done:!item.done}:item)
    })
  },
  methods:{
    // //头部添加数据功能
    // addList(value){
    //   this.todoList.push(value)
    // },

  //  //单个删除
  //  oneDelete(oid){
  //    this.todoList = this.todoList.filter((item)=> item.id !== oid )
  //  },

  //  //单选框
  //  radioHandle(rid){
  //     this.todoList = this.todoList.map((item)=> item.id === rid? {...item,done:!item.done}:item)
  //  },

   //全选时修改所有值为全选的值
   CheckedAll(value){
    this.todoList = this.todoList.map((item)=> ({...item,done:value}))
   },

   //点击删除所有,也就是返回所有false，
   deleteAll(){
    this.todoList = this.todoList.filter((item)=> !item.done)
   }
  }
}
  
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}


</style>
